The Constituents of Hops. V. The Volatile Composition of <I>Humulus japonicus</I> Sieb. et Zucc.

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概要

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• The steam-volatile constituents of <I>Humulus japonicus</I> Sieb. et Zucc. have been studied, and 50 compounds of the oil have been identified mainly by means of the temperature-programmed capillary GLC mass-spectra method. Beside the previously-reported principal components of hops (α-humulene, caryophyllene, α-copaene, α- and β-selinenes, γ-cadinene, caryophyllene-oxide, and humulene-epoxide-II), benzyl alcohol and phenethyl alcohol were found in high concentrations, whereas the myrcene was negligible. The proportion of the main compound, humulene, to the next highest one, caryophyllene, was approximately in the ratio of two to one, as in the essential oil of <I>H. lupulus</I>. As far as the chemical composition of the essential oils is concerned, <I>H. japonicus</I> seems to be related rather more closely to <I>H. lupulus</I> than to <I>H. cordifolius</I>.

• 公益社団法人 日本化学会の論文

著者

• Kotake Munio

  The Institute of Food Chemistry

• Naya Yoko

  The Institute of Food Chemistry

関連論文

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• The Constituents of Hops. V. The Volatile Composition of Humulus japonicus Sieb. et Zucc.
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